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-- captions by vitac -- www.vitac.com >>> long road ahead. authorities in the u.s. investigate the dreamliner and find its batteries could keep it on the ground for some time to come. u.s. transportation investigators have cast doubt on a quick fix for the problems facing the dreamliner. they say regulators need to rethink their approval of batteries used in the boeing 787. officials from a number of agencies are looking into a string of safety incidents. debra hersman chaired the u.s. national transportation safety board. she said a lithium ion battery sparked a fire on a jet in boston. >> this investigation has demonstrated that a short circuit in a single cell can propagate to adjacent cells and result in smoke and fire. >> engineers packaged eight cells together in designing the battery system for the dreamliner. hersman said they didn't place them far enough apart so trouble in one could affect the others. they have not determined why the batteries short circuiteded. another battery fire forced the pilot of an all nipon airways pilot to make an emergency landing in japan.
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